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I'm Kaila, I'm 16 & a Junior.

How the rock typically forms. explain in a few sentences.	Insert a picture illistrating the process by which the rock forms.
Insert a picture or pictures of some or all of the minerals that compose the rock.	insert a picture of the rock you are describing.

Mineral Property	Definition	Description: How is it used to ID unknown minerals?	Supporting Images
Luster	the way that a mineral reflects light from it's surface.	it's described as being metallic, or non metallic.
Streak	the color of a mineral when it is broken up and powdered.
sometimes the streak of a mineral is different from the external color of the mineral. a minerals streak rarely changes.
Hardness	a measure of how easily a mineral can be scratched.
Cleavage	the ability of a mineral to split relatively easily along one or more flat planes.
Fracture	the ability of minerals to break with arclike, rough, or jagged edges.
Specific Gravity	the ratio of the weight of a substance to the weight of an equal volume of water at 4 degrees C
Special / Unique (examples include magnetism, fluorescence, smell, etc.)	special properties of minerals that can be used for identification purposes.